JPS6320602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a long metal profile made by rolling and pressure-welding dissimilar metals such as stainless steel and a highly ductile metal such as aluminum as the main material.

Generally, an extrusion method is used as a method for producing long dissimilar metal composite shapes, but this method requires large-scale equipment, is complicated, and has high equipment costs.

Therefore, it is conceivable to manufacture a long length by a roll rolling pressure welding method which requires less equipment cost.

In this case, the roll machine can perform predetermined rolling pressure welding by using one of the opposing rolls as a grooved roll and rolling the dissimilar metal material while introducing it into the grooved portion of the roll.

However, when a metal material introduced into a grooved roll is rolled and then taken out while being peeled off from the grooved part of the grooved roll, a considerably high frictional force acts between the metal material and the grooved part of the grooved roll. There is a tendency that the metal material cannot be taken out smoothly.

Therefore, a stripping jig consisting of a stripping tool that facilitates stripping the metal material from the grooves of the grooved roll is attached to the grooved roll.

However, when such a stripping jig is used, there is a problem in that the contact surface between the stripping jig and the metal material rubs violently, causing damage to the rolled shape material taken out after rolling, and significantly reducing the product value. .

The object of the present invention is to solve the above-mentioned problems and to provide a novel metal of this kind, which allows metal profiles to be manufactured continuously and efficiently without any damage caused by the use of a stripping jig. An object of the present invention is to provide a method for manufacturing a mold material.

That is, in the manufacturing method of the present invention, a dummy tape is introduced between a grooved roll equipped with a stripping jig and a metal material introduced into the grooved roll and rolled, and rolling is performed. This prevents direct contact between the stripping jig and the metal material when stripping the rolled metal material from the groove, and allows the metal material to be removed as a high-quality metal shape without any scratches.

The manufacturing method of the present invention will be explained below with reference to FIGS. 1 and 2, which schematically show the manufacturing method.

As shown in the figure, supply devices 1 and 2 such as reels
The metal materials 5 and 6 pulled out are subjected to chemical and mechanical pretreatment in pretreatment devices 3 and 4. The metal materials 5 and 6, which have been pretreated in this way to clean the surfaces to be bonded to each other, are heated in heating devices 7 and 8 until they reach a required temperature. The heated metal material is guided to a rolling welding guide 11 and rolled to rolls 12 and 13 of a rolling machine.
introduced in between. One of the rolls 13 is a grooved roll, and the metal materials 5 and 6 are caught in the grooves of this roll.
A predetermined rolling pressure welding is performed by rolling down the roll 12 in a state where the material is inserted. On the other hand, after the dummy tape 10 provided by the present invention is pulled out from a supply device 9 such as a reel, it is guided by a guide 11 and introduced between rolls 12 and 13 like the metal material.

The introduced dummy tape 10 is interposed between the material 6 on the grooved roll side of the metal material and the grooved surface of the grooved roll 13, and in this state is attached along the circumferential surface of the groove of the grooved roll 13. It passes over a stripping jig 17. In particular, the stripping jig 17 has a smooth support surface 17a and a faceted tip 17b formed by an extension of the smooth support surface 17a, as shown in FIG. is introduced into the groove 13a of the grooved roll 13 while being applied to the circumferential surface of the groove 13a.

Therefore, the metal materials 5 and 6 are attached to the dummy tape 1.
0, and is peeled off from the groove 13a of the grooved roll 13 at the faceted tip 17b of the stripping jig 17.
The grooved roll 1 is guided through the dummy tape 10 guided by the support surface 17a of the grooved roll 1.
It progresses in the direction of the arrow while being peeled off from the groove part 3. The dummy tape 10 attached to the composite profile 16 thus taken out is peeled off from the composite profile 16 after passing through the stripping jig 17 and wound up by the winder 15. Further, the composite material 16 from which the dummy tape 10 has been peeled off is wound up by a winding machine 14.

The metal materials 5 and 6 that are rolled and welded in this way are
By being introduced into the grooved roll 13 via the dummy tape 10 and peeled off by the stripping jig, the tape is protected by the dummy tape without coming into direct contact with the stripping jig. This prevents the damage that can easily occur when peeling off the grooved roll.

Specific examples will be described below. An aluminum strip was used as the metal material 5, and an SUS304 stainless steel tape was used as the metal material 6. After cleaning the joint surfaces of these, the stainless steel tape 6 was heated to 100 to 200°C, and one of the aluminum strips was heated. The strip 5 is heated to 100 to 500°C, and the heated aluminum strip 5 and stainless steel tape 6 are attached with an iron tape serving as a dummy tape 10 on the surface of the stainless steel tape 6, and in that state, a 300φ Introduced into cast steel roll machine. The aluminum strip 5, the stainless steel tape 6, and the iron tape 10 that have been introduced are such that the iron tape 10 is a grooved roll 13.
The iron tape 10 is passed through between the rolls 12 and 13 so as to be on the side, and hot pressure welded at a reduction rate of 40 to 80%, and the iron tape 10 is peeled off along the groove of the grooved roll 13. The aluminum/stainless steel composite material from which the iron tape 17 had been removed was removed from the groove of the grooved roll 13 while being passed over the jig 17.

The surface of the stainless steel tape 6 that passed through the stripping jig side of the composite molded material 16 that was taken out was not scratched.

In the above embodiment, a composite material is used as an example, but
Even in the case of a single material, if it is rolled with a grooved roll and requires a stripping jig,
By applying the method of the invention, it is possible to produce products of high quality without any damage.

Further, as the dummy tape used for this purpose, it is also possible to use, for example, a copper tape made of a material having the same performance as the iron tape described above.

As described above, according to the method for manufacturing a metal profile according to the present invention, in which a grooved roll is used and a stripping jig is used to peel the rolled material from the grooves of the roll, the rolled metal material is removed from the dummy. Since the stripping jig is passed through the tape, the obtained metal shape is not damaged at all, and therefore, high quality long metal shapes can be continuously manufactured. In particular, We have established a method for producing high-quality long materials such as trolley wires made of composite materials of aluminum and stainless steel.
The industrial effects are enormous.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a method for manufacturing a long metal profile of the present invention, and FIG. 2 is an explanatory diagram showing a main part of the same method with some parts cut away. 1: Aluminum strip supply reel, 2: Stainless steel tape supply reel, 3: Aluminum strip pretreatment device, 4: Stainless steel tape pretreatment device, 5: Aluminum strip, 6: Stainless steel tape, 7: Aluminum strip heating Device, 8: Stainless steel tape heating device, 9: Dummy tape (iron tape) supply reel, 10: Dummy tape (iron tape), 11: Guide, 12: Roll, 13: Grooved roll, 14: Shape material winding machine, 15: dummy tape (iron tape) winding machine, 16: composite material, 17: stripping jig.

Claims (1)

[Claims] 1. A metal material mainly consisting of a material with high ductility is supplied between a roll and a grooved roll, and is rolled and deformed with these rolls at a rolling reduction ratio of 40 to 80%, and then the grooved part of the grooved roll is When separating and taking out the rolled metal material that has entered into the grooved roll from the grooved roll using a stripping jig, the dummy tape is introduced into the groove of the grooved roll while attaching the dummy tape to the metal material. Supplied between the rolls,
The dummy tape after rolling by these rolls is passed between the rolled metal material and a stripping jig, and then separated and removed from the metal material, and the metal shape material is continuously taken out. A method for manufacturing long metal shapes.